CAI Cool-Air Tube Heat Shield
Came across this a few months ago and seemed like a good idea
Keep your induction air cool with this unique lace up tube cover. The design of the cover allows it to fit from 2-1/2 inch to 3-1/2 inch air tubes up to 36 inches long. The lace on heat shield blocks over 98% of the radiant heat of the turbo and exhaust.
I work as a aircraft gas turbine engineer and have seen similar technology used for wrapping harnesses to protect them from heat. I managed to source a heatshield from my work that had been scrapped. Its constructed of heat resistant fibres with a reflective foil exterior and a heat reflective silicone inner. Same idea as the above product but a far higher quality standard.
Removed my CAI today and fitted the heatshield. Took a bit of time to get it to fold neatly round the bends but i think it turned out pretty good.